William Arthur Downey, OD
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3637 Larch Ave, South Lake Tahoe, CA 96150-8448
- Practice phone
- Call (530) 544-3403
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
William A. Downey
Eye care practice · South Lake Tahoe, California
Find William Downey's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
William Arthur Downey is an optometrist in South Lake Tahoe, California
William Downey practices at William A. Downey in South Lake Tahoe, California.
William Downey's NPI, 1629153796, was assigned on October 26, 2006. William Downey holds California license CA006201T.
- NPI
- 1629153796NPI Registry (opens in a new tab)
- NPI enumeration date
- October 26, 2006
- NPI status
- Active
- Practice phone
- (530) 544-3403
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Arthur Downey practices at William A. Downey in South Lake Tahoe, California
William Downey's primary practice is William A. Downey, at 3637 Larch Ave, South Lake Tahoe, CA 96150-8448. The practice phone is (530) 544-3403.
- William A. Downey3637 Larch Ave, South Lake Tahoe, CA 96150-8448Phone(530) 544-3403
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Arthur Downey is affiliated with 1 site of care and 1 medical group
William Downey's primary practice is William A. Downey in South Lake Tahoe, California. Dmand AI also links William Downey to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at William Arthur Downey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Downey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William A. Downey | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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William Arthur Downey is one of 7,206 optometrists in California
Optometrist is William Downey's primary specialty in the NPI Registry, under taxonomy code 152W00000X. William Downey is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near William Downey
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
William Arthur Downey's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts William Downey's median patient age at 75, with 75% women.
William Downey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Sources for William Arthur Downey's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about William Arthur Downey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Arthur Downey's NPI number?
William Arthur Downey's NPI number is 1629153796. It was assigned on October 26, 2006, and it is active in the NPI Registry.
What does William Arthur Downey specialize in?
William Arthur Downey is an optometrist in South Lake Tahoe, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does William Arthur Downey practice?
William Downey practices at 3637 Larch Ave, South Lake Tahoe, CA 96150-8448. William Downey's primary practice is William A. Downey in South Lake Tahoe, California. Dmand AI also links William Downey to 1 medical group.
What is William Arthur Downey's office phone number?
The practice phone on file for William Downey is (530) 544-3403.
What is William Arthur Downey's medical license number?
William Downey holds California license CA006201T.
How long has William Arthur Downey been practicing?
William Downey's NPI was assigned in 2006.
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